vb要用CommonDialog控件。也可以也可以代码实现
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Dim fileDlg As Object Set fileDlg = CreateObject("") fileDlg.DialogTitle = "选择文件" fileDlg.Filter = 文本文件|*.txt|" fileDlg.FilterIndex = 2 fileDlg.ShowOpen If fileDlg.FileName <> "" Then F1$=fileDlg.FileName Else msgbox "没有选择文件" return End If